Abstract: The spatial distribution of five heavy metals (As, Cd, Cr, Hg, Pb) in  paddy soils from four different zones in Danzhai AuHg mining of Guizhou Province were analyzed, and the pollution status was assessed by  single factor index and Nemerow comprehensive index. The contents of As, Cd, Cr, Hg and Pb were 7.66-73.5, 0.233-0.777, 58.3-125, 1.13-77.1 and 23.7-111 mg·kg^-1 (n=28), with averages of (31.2±17.2), (0.426±0.136), (95.3±15.6), (20.4±22.7) and (49.9±23.9) mg·kg^-1 (n=28), respectively. Heavy metal contents in soils varied with different zones, with higher As, Hg and Pb contents in village area, higher Pb content in national road area, and higher As and Hg contents in tailing area. The Nemerow comprehensive index showed that 92.86% of soil samples were polluted heavily with Hg pollution and slightly with As pollution. The As and Hg contents in brown rice exceeded the China’s national standard. The release of As and Hg in the process of AuHg mining and smelting with water migration is the main way to paddy soil pollution

Key words: proso millet/mung bean intercropping, field microclimate, dryland of Loess Plateau, yield